Getting someone else's mail is one of those things that is bound to happen when you live in an apartment building or complex. Most of the time, it's an innocent mistake. However, if it begins to become a repeated occurrence, something else may be afloat. This Redditor discovered that another tenant in the building was using his address for package and food deliveries. After a few instances in which the Redditor walked over to the tenant's apartment and hand-delivered said packages, he asked the…